Trolley.



No. 889,015. PATENTED MAY 26, 1908.

- A. s. JANIN.

TROLLEY.

APPLICATION FILED NOV 16, 1906.

INVENTOH WITNESSES Zfiezi ii/Zrzzn A TTORNE Y8 THE umams PETERS ca, wAsnmo-rou, n. 1:.

UNITED STATES PATENT OFFICE.

ALBERT S. JANIN, OF NEW YORK, N. Y., ASSIGNOR OF ONE-THIRD TO AMELIA JANIN,

' BROOKLYN, NEW YORK.

TROLLEY.

Specification of Letters Patent.

Patented May 26, 1908.

Application filed November 16, 1906. Serial No. 343,672.

To all whom it may concern:

Be it known that I, ALBERT S. JANIN, a citizen of the United States, and a resident of the city of New York, Rosebank, Staten Island, borough of Richmond, in the county of Richmond and State of New York, have invented a new and Improved Trolley, of which the following is a full, clear, and eXact description.

The purpose of the invention is to provide a trolley arm with a contact roller that is capable of running free in its support or which can be held stationary to act not only as a conductor but also as a scraper.

Another purpose of the invention is to mount the contact roller upon ball bearings and to provide a convenient means for locking the balls in their races, and likewise to provide a scraper capable of being carried inactive beneath the contact roller and of being quickly and conveniently placed in the upper position to perform its function as a scraper at the same time also serving as a contact, the roller being then removed.

It is a further purpose of the invention to provide means for equalizing the movement of the members of the trolley arm and to protect said means.

The invention consists in the novel construction and combination of the several and pointed out in the claims.

Reference is to be had to the accompanying drawings forming apart of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of a trolley arm having the improvement applied; Fig. 2 is an enlarged side elevation of the contact roller and its support, a portion of the trolley arm being in section, which section is taken practically on the line 22 of Fig. 1; Fig. 3 is an end view of the support for the contact roller and a section through the guard carried by the support, the section being taken on the line 33 of Fig. 2; Fig. 4 is an enlarged sectional side elevation of the contact roller, the section being taken practically on the line 44 of Fi 5; Fig. 5 is an end view of the contact ro ler; and Fig. 6 is an inner face view ofone end member of the contact roller support and a section through the scraper, which latter is shown in position for action.

The trolley arm A is of the spring-actuated diamond-shaped type, its upper members 10 and lower members 11 being connected at their outer ends by pins 10, while the inner or lower ends of the lower members 11 are pivoted to the upright members 12 of a base 13; and the inner or upper ends of the upper members 10 are pivotally attached to the outer faces of cheek pieces 14 constituting a portion of the frame for a contact roller B. The inner ends of the upper main frame members 10 have circular enlargements 16, and similar enlargements 15 are provided for the lower ends of the lower frame members 11 as is shown in Fig. 1. The upper members 1O ofthe main frame are pivoted to the said check pieces 14 by means of suitable pivot pins 10 correspondin pins 11 being provided for the inner ends 0 the lower mam frame members 11. The cheek pieces of the contact roller frame are preferably reinforced upon their inner faces by centrally: located longitudinal offsets 14 but said off sets may be omitted, and the said cheek pieces 14 are connected by one or more rods 14", or their equivalents.

The enlargements at the inner ends ofthe upper and lower main frame members 10 and 11 are connected by links 17, wrist pins 18 being passed through the end portions of the links into said enlargements, whereby to render the action of the said members 10 and 11.

recesses 19- which extend from their outer,

edges to a central point as is best shown in Figs. 1 and 3; and adjacent to the longitudinal edges of the slots or recesses 19 lugs 20 are formed, and cotter pins 21 are passed.

through opposing lugs as is also shown in Figs. 1 and 2, said lugsbeing at the outside of the aforesaid cheek pieces. The slots or recesses 19 are adapted to receive. the outer ends of the shaft 22 for the contact roller B, said shaft at its outer ends being provided with flattened surfaces 23, and the cotter pins 21 all engage with the said flattened or recessed portions 23 of the shaft. The shaft 22 is thus held in position by the cheek pieces'14 but is prevented from turning.

The roller B is hollow, and at each end 'is provided with an integral or attached ring 24 having a circumferential race 25 in its inner face; and within the spaces surrounded by the rings 24 disk heads 26 are loosely entered,

the said disk heads 26 being held fast to the shaft 22 by angular or L-shaped keys 27, the heads of the keys being at the inner faces of the said disk heads as is shown in Fig. 4. These keys fit into longitudinal grooves in the shaft 22 and thus effectually prevent'said shaft from having end movement.

Each disk head 26 is provided with a peripheral race 28, and ball bearings 29 are received in the races 25 and 28, engaging with the disk heads 26 and the end rings 24 of the said roller B as is particularly shown in Fig. 4.

The balls are entered into their races by providing a recess in each of the disk heads 26 at the periphery, said recesses being preferably tapering; and in said recesses key blocks 30 are removably placed, having races also in their convexed surfaces corresponding to the races in the disk head. The key block having been removed the balls entered at the recesses normally closed by the key blocks 30, the blocks are then fitted in the recesses and held in place by screws 31 or like devices. The recesses for the key blocks 30 do not extend through to the inner faces of the disk heads.

It is impossible to take off the shaft after it is once looked, without taking all of the balls from their races at each end, and once the balls are entered they need no adjusting.

The contact roller B is provided with an opening 32 at one of its ends, a corresponding opening being made in the opposing cheek 14 of the supporting frame for said roller; and an angular pin 33 can be passed through said opening 32 and the corresponding opening in the cheek 14, whereby to hold the roller stationary, so that the said roller can act in the capacity of a scraper as well as a conductor. The head 34 of said pin 33 when placed in position to hold the roller B stationary receives a lug 35 that extends from the outer face of the cheek 14 as is illustrated in Figs 1 and 3 and a cotter pin 36 or its equivalent is passed through the head 34 of said pin 33 and through said lug.

A guard 37 consisting of a series of arched bars is attached to or made integral with the outer faces of the cheek pieces 14, extending from top to bottom of the said cheek pieces; and the bars constituting the said guards are spread apart sufficiently to thoroughly protect the links 17 and the cotter pins 21 and 36 from any interference by wires in the path of the trolley.

The guards 37 are so arched as to connect the top and the bottom of the contact frames, and when the guards come in contact with a broken branch wire and it is lower than the guards, they com el such wires to slide up on to the contact ro ler, thus avoiding destruction to the trolley and also to the over-head wires. I

A scraper 38 is employed in connection with the cheek pieces, which scraper is adapted to occupy the lower position shown in Fig. 3 when not in use, and when in use the scraper 38 occupies the upper position shown in Fig. 6, and before the scraper is carried to the latter position the roller B is removed. The scraper 38 is in the nature of a concaved or arched blade, and is provided at its ends with flanges 39. Apertures are made in the bottom and top portions of the cheek pieces 14 to receive pins 40, which are passed through the flanges 39 of the said scraper and are held in position by means of cotter pins 41 or like devices.

It will be observed that the trolley in its entirety is exceedingly simple and well adapted for the purpose intended, and that the contact roller B may be held stationary or may be permitted to revolve as occasion may require, and that the scraper 38 may be brought into action at any time desired.

The trolley arm A, is limited in its up and down movement by producing two lugs 42 upon the outer face of the upright members 12 of the base 13, one beneath and to the' outside of each lower enlargement 15, and a third one 43 between said enlargement as is shown in Fig. 1 which lugs 42 and 43 are engaged by lugs 44 extending down from the said enlargements.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent,

1. In a trolley, a contact roller and means independent of the contact surface of the roller for locking said roller stationary, whereby the roller may act also in the capacity of a scraper.

2. In a trolley, a tension-controlled frame, a contact roller removably mounted in the said frame, means independent of the peripheral surfaces of the roller, for locking the said roller stationary when desired, and roller bearings for the said roller.

3. In a trolley, a support, a shaft mounted in said support, means for holding said shaft stationary, a contact roller revolubly mounted upon the said shaft, means for locking the contact roller in fixed position, and segmental guards that span the ends of the shaftand are carried by its supports.

4. In a trolley, a support, a shaft removably mounted in the said support, means for holding said shaft stationary, a contact roller revolubly mounted upon the said shaft, means for locking the contact roller in fixed position, and segmental guards that span the ends of the shaft and are carried by its supports.

5. In a trolley, a tension-controlled diamond-shaped frame, a link connection between the upper side members of the frame and a link connection between the lower side members of the frame, means for limiting the upward and downward movement of the frame, cheek pieces to which the upper terminal portions of the upper members of the frame are pivoted, guards located at the exterior faces of said cheek pieces, a roller mounted in said cheek pieces and a device for locking said roller stationary to act in the dual capacity of a contact and scraper.

6. In a trolley, a diamond-shaped frame, supports at the upper central portion of the said frame, a contact roller mounted in said supports, and segmental guards that incase the end portions of the frame connected With the supports for the said roller.

7. In a trolley, supports for the contact roller having slots therein extending diagonally from their outer edges to the center,

apertured and alining lugs located upon the outer faces of the said supports at each side of the slots therein adjacent their inner ends,

and bridging members removably carried by said lugs adapted for engagement with the trunnions of the contact roller when journaled in said supports.

8. In a trolley, supports provided with bearings for the contact roller, and an adjustable scraper, and means for removably securing said scraper to said supports either above or below said bearings, whereby said scraper acts also as a connecting brace for the said supports.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

Y ALBERT S. JANIN.

Witnesses:

J. G. HAGELSTEM, JOHN J. STooP, Jr. 

